Systems of equations and vector

This program looks great but I'm new and do not know their use.
My question is simple:
I know how to solve systems of equations of three unknowns.

I would also like to know how to pass vector of polar coordinates to rectangular and rectangular to polar coordinates.

thanks

Hello,

Wrote

I would also like to know how to pass vector of polar coordinates to rectangular and rectangular to polar coordinates.

Hope this could be the answer, If I understood you well:


Did I make any mistake here - pol2xy() can accept rho (distance) as negative ???
I think it might be wrong and should be suppressed.

Regards,
Radovan